The National Academies Press (NAP) was created by the National Academy of Sciences to publish the reports of the National Academy of Sciences, National Academy of Engineering, Institute of Medicine, and National Research Council, all operating under a charter granted by the Congress of the United States. The NAP publishes more than 200 books a year on a wide range of topics in science, engineering, and medicine, providing authoritative information on important matters in science and health policy. NAP offers more than 5,000 titles in PDF format. All of these PDFs can be downloaded for free by the chapter or the entire book.
If you do not already have a NAP account (free), then you can do this easily by clicking on the following link:
At this site, you will see a “Help” column on the right side of the page. Under the heading “Using NAP.edu”, select “MyNAP”. On this new page, follow the instructions under “Getting Started” and register for your account. Once you have an account, you’ll be able to select and download the NAP pdf documents you find interesting. You also should receive periodic e-mails announcing the availability of new NAP publications.
I hope you’ll find NAP to be a valuable resource.